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  • Title: [Correlation of DEFB1 polymorphisms with chronic periodontitis in Henan Han population].
    Author: Ma X, Li H, Chou H.
    Journal: Zhonghua Yi Xue Yi Chuan Xue Za Zhi; 2019 Apr 10; 36(4):371-375. PubMed ID: 30950029.
    Abstract:
    OBJECTIVE: To investigate the association between the polymorphisms of 5'-UTR -52G/A (rs1799946), -44C/G (rs1800972), -20G/A (rs11362) in DEFB1 gene with chronic periodontitis in Henan Han population. METHODS: Peripheral blood genomic DNA of 436 patients with chronic periodontitis and 440 healthy controls were extracted and subjected to PCR-Sanger sequencing to determine the genotypes of DEFB1 5'-UTR -52G/A (rs1799946), -44C/G (rs1800972) and -20G/A (rs11362). The distribution of genotypes, allele frequencies and risk factors were analyzed by chi-square test and Logistic regression. RESULTS: There was no significant difference between healthy controls and chronic periodontitis in the genotype of -52G/A PCR- (rs1799946) and -20G/A (rs11362) (P> 0.05). While a significant difference was found between healthy controls and chronic periodontitis in -44C/G (rs1800972), the CC and CG genotype rate in the two groups were 64.5%, 82.1% and 28.2%, 14.4% respectively. One-way logistic analysis showed that the CG, GG genotype and allele G might be a protective factor. CONCLUSION: The DEFB1 -44C/G (rs1800972) is associated with chronic periodontitis in Henan Han population, and the -44CG, GG genotype and G allele may be the protective factors of chronic periodontitis in Henan Han population.
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